EP1591740A1 - Wärmetauscher und Installation zur Entnahme von Wärme aus Abwasser - Google Patents
Wärmetauscher und Installation zur Entnahme von Wärme aus Abwasser Download PDFInfo
- Publication number
- EP1591740A1 EP1591740A1 EP04405271A EP04405271A EP1591740A1 EP 1591740 A1 EP1591740 A1 EP 1591740A1 EP 04405271 A EP04405271 A EP 04405271A EP 04405271 A EP04405271 A EP 04405271A EP 1591740 A1 EP1591740 A1 EP 1591740A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchanger
- heat
- copper
- heat exchange
- exchanger system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002351 wastewater Substances 0.000 title claims description 17
- 238000009434 installation Methods 0.000 title claims description 5
- 239000010949 copper Substances 0.000 claims abstract description 40
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910052802 copper Inorganic materials 0.000 claims abstract description 25
- 229910000881 Cu alloy Inorganic materials 0.000 claims abstract description 10
- 239000005749 Copper compound Substances 0.000 claims 4
- 150000001880 copper compounds Chemical class 0.000 claims 4
- 239000012530 fluid Substances 0.000 claims 1
- 239000010865 sewage Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 229910000669 Chrome steel Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 229910000510 noble metal Inorganic materials 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 241001424392 Lucia limbaria Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000005325 percolation Methods 0.000 description 1
- 239000004447 silicone coating Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 238000004457 water analysis Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/085—Heat exchange elements made from metals or metal alloys from copper or copper alloys
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
- F28D21/0012—Recuperative heat exchangers the heat being recuperated from waste water or from condensates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/002—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using inserts or attachments
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/02—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/56—Heat recovery units
Definitions
- the invention relates to heat exchanger systems and installations for the removal of Waste heat from wastewater.
- Such heat exchanger systems are, for example, from German Patent 197 19 311 known. It has been found that a direct contact of a preferably metallic heat exchanger surface with the wastewater is important for one Efficiency can be achieved, in which the economy is guaranteed. However, this requires that this heat exchanger surface is formed on the one hand, that they do not pollute too quickly and on the other hand that they are the official Requirements are sufficient, i. for example, that she is walkable and with the usual cleaning nozzles can be cleaned.
- Sewerages or sewers are naturally high grade susceptible to contamination.
- a layer of dirt on the Heat exchange surface naturally has a negative effect on the heat transfer.
- Sielhaut This is a biofilm that covers objects that are not exposed to pure water for a long time.
- a heat exchanger system has at least one Surface area of copper or a copper-containing alloy. This one does preferably only a small percentage - for example less than 5% or less than 2% - the heat exchange surface off. He is so arranged that over the Heat exchange surface flowing wastewater as possible before the heat exchange surface or at the beginning of the heat exchange surface over said surface areas flows.
- the invention is based on the finding that the biofilm-impairing Effect of a copper concentration on the sewer surface also in one certain area in the flow direction behind the said surfaces stops. This has been confirmed in measurements.
- the surface areas in the Shape of at least one interchangeable, extending across the channel Bandes available If the length of the entire heat exchange surface a certain, from the average composition of the sewage exceeds a dependent value, there may be more than one band. For example. can be arranged every 1-5 m, a copper strip width of, for example, 0.5-5 cm.
- the surface areas may also have other shapes exhibit. They can, for example, also be flat and / or in their width of the local too be expected to be adapted overflowing effluent. Preferably, they are arranged so that at least a large part of the low Sewage accumulation existing water trajectories on the surface areas to lead. For a flow assumed to be laminar this means approximately, that the surface areas in a projection along the Flow direction on a contour line at least half of a lower Make the area of the contour line.
- the sewer pipe 1 shown only very schematically in Fig. 1 is drained by wastewater in the direction of arrow 2.
- the sewer pipe is usually made of concrete.
- a heat exchanger system is introduced with at least one heat exchanger element 3, where the Betonoberf kaue is replaced by a usually metallic heat exchange surface 4 or covered by them.
- Below the heat exchange surface flows a heat exchange medium which circulates between the heat exchanger and a heat pump.
- sewer pipe segments can be used in areas Heat exchange sewer pipe segments to be replaced. Heat exchangers can also placed in a bed of a dry weather gutter on the Kanalisationsröhrensee segments be placed etc. There may be supply tubes for Supplying the heat exchanger with the heat exchange medium inside or be provided outside the sewer pipes. Often that possesses Heat exchanger system a series of abutting or each other spaced heat exchanger elements. More information about certain Embodiments of heat exchanger systems can be found in the German Patent 197 19 311, whose content regarding the realization of Installations for the removal of heat from wastewater expressly referenced here becomes.
- the invention relates to any configuration of heat exchangers for in a Sewer tube or gutter flowing sewage.
- the inventive measures can in all versions of such or to be developed heat exchanger systems are used.
- the heat exchanger system of Fig. 1 is provided with a copper tape 5 which is mounted upstream of the heat exchange surface and extends across the lower half of the sewer pipe.
- the copper strip has a width b of 2 cm and a thickness of between 0.5 mm and 5 mm. It can be introduced into a specially provided groove in a heat exchanger element, applied to a heat exchanger element or attached next to a heat exchanger element or between two heat exchanger elements.
- FIG. 2 shows a sewer pipe with a plurality of heat exchanger elements 3a, 3b.
- copper strips 5 are attached in the direction of flow above the first heat exchanger element and between the heat exchanger elements.
- the Cu strips are inserted in the mortar filling the space between the heat exchanger elements.
- the length of the Cu bands in this embodiment is chosen so that it does not extend over the entire lower half of the sewer pipe. Rather, it only extends to a water level 6, which corresponds to the water level at average wastewater flow. In any case, there will be only a slight tendency for the attachment of a sipe skin on the part surface of the heat exchange surface lying above this water level, since this part surface dries out again and again.
- a Cu-band is mounted in each space between two heat exchanger elements.
- the Cu-bands can be mounted both on and between the heat exchanger elements or only on heat exchanger elements.
- a water analysis and / or the pH value of the waste water can be used in the determination of the necessary Cu area.
- the distance between the heat exchanger elements may vary depending on the average sewage quality can be selected. It has been shown that the distance required for the desired function from various factors depends in particular on the concentration of metals such as Ni, Cr, Zn and Cd in the Sewage. Typically, the optimum distance d is between two Cu bands between 1 m and 10 m, in particular between 1 m and 5 m. If that entire heat exchanger system is not longer than the required distance is sufficient Cu strip.
- the Cu bands are mounted so that they are easily removed or can be replaced. It is to be expected that their life that of the heat exchanger system falls well below and that, for example, all 3-10 years must be replaced.
- a noble metal eg, Cu
- a non noble one Metal eg Cr in chrome steel
- the Cu bands or otherwise formed Cu elements can be provided.
- Made of chrome steel sheet Do not touch the heat exchanger. This can be effected by between the heat exchanger elements and the Cu bands provided a silicone coating is.
- the bands may, for example, less wide than the distance between adjacent heat exchanger elements and be mounted so that they do not touch but only come in contact with mortar. Other measures are conceivable.
- Fig. 3 is shown in a schematic plan view of an embodiment in which the surface regions 11 have a more or less arbitrarily selected shape.
- the surface area (s) of Cu or a Cu alloy is selected so that most of the flow trajectories 12 pass over the Cu. This leads to the approximate condition that, when projecting onto a contour line 13 along the flow direction or against the flow direction, the surface regions make up at least half of a lower portion of the contour line.
- the schematic projection areas are represented by bold lines.
- the embodiment according to FIG. 4 has a surface region 21 made of Cu or a Cu alloy and, subsequently, a baffle 22 for producing a turbulence. In the flow direction after the baffle 22, a heat exchanger element is attached. Due to the turbulence is ensured that after the chicane, a large part of the wastewater has a certain concentration of Cu, which can counteract the formation of a Sielhaut.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Water Treatment By Sorption (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
Description
Claims (9)
- Wärmetauschersystem für die Entnahme von Wärme aus Abwasser mit mindestens einem Wärmetauscherelement, gekennzeichnet durch mindestens einen Oberflächenbereich (5, 11, 21) aus Kupfer, einer Kupferlegierung oder einer Kupferverbindung, wobei die gesamte Fläche des Oberflächenbereiches bzw. der Oberflächenbereiche kleiner ist als eine gesamte Wärmetauschfläche des Wärmetauschersystems.
- Wärmtauschersystem nach Anspruch 1, dadurch gekennzeichnet, dass die gesamte Fläche des Oberflächenbereiches oder der Oberflächenbereiche kleiner als 5% der Wärmetauschfläche, vorzugsweise kleiner als 2% der Wärmetauschfläche ist.
- Wärmetauschersystem nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Oberflächenbereich oder mindestens einer der Oberflächenbereiche aus Kupfer, einer Kupferlegierung oder einer Kupferverbindung in Strömungsrichtung vor der Wärmetauschfläche eines ersten Wärmetauschelementes oder am Anfang der Wärmetauschfläche eines ersten Wärmetauschelementes angeordnet ist bzw. sind.
- Wärmetauschersystem nach Anspruch 3, dadurch gekennzeichnet, dass dem Oberflächenbereich oder den Oberflächenbereichen am Anfang des ersten Wärmetauschelementes weitere Oberflächenbereiche aus Kupfer, einer Kupferlegierung oder einer Kupferverbindung in regelmässigen Abständen folgen.
- Wärmetauschersystem nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Oberflächenbereiche so angebracht sind, dass bei durchschnittlicher Durchflussmenge sie von einem Grossteil des Abwassers überströmt werden.
- Wärmetauschersystem nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Oberflächenbereiche (5) durch Oberflächen von zur Strömungsrichtung im Wesentlichen quer verlaufenden Bändern aus Kupfer, einer Kupferlegierung oder einer Kupferverbindung gebildet werden.
- Wärmetauschersystem nach Anspruch 6, dadurch gekennzeichnet, dass die Bänder neben bzw. zwischen Wärmetauscherelementen angeordnet sind.
- Wärmetauschersystem nach Anspruch 6, dadurch gekennzeichnet, dass die Bänder auf Wärmetauscherelementen aufgebracht oder in Rillen der Wärmetauscherelemente eingebracht sind.
- Installation zur Entnahme von Wärme aus Abwasser, aufweisend eine Wärmepumpe, ein Kreislaufsystem für eine Wärmeaustauschflüssigkeit und ein Wärmetauschersystem nach einem der Ansprüche 1 bis 8.
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT04405271T ATE374350T1 (de) | 2004-04-30 | 2004-04-30 | Wärmetauscher und installation zur entnahme von wärme aus abwasser |
DE502004005077T DE502004005077D1 (de) | 2004-04-30 | 2004-04-30 | Wärmetauscher und Installation zur Entnahme von Wärme aus Abwasser |
EP04405271A EP1591740B8 (de) | 2004-04-30 | 2004-04-30 | Wärmetauscher und Installation zur Entnahme von Wärme aus Abwasser |
CN2005800223460A CN101002065B (zh) | 2004-04-30 | 2005-04-29 | 用于从废水中回收热量的热交换器和装置 |
JP2007509850A JP4871858B2 (ja) | 2004-04-30 | 2005-04-29 | 廃水から熱を抽出するための熱交換器および設備 |
CA2565142A CA2565142C (en) | 2004-04-30 | 2005-04-29 | Heat exchanger and installation for extracting heat from waste water |
US11/587,820 US8720533B2 (en) | 2004-04-30 | 2005-04-29 | Heat exchanger and installation for extracting heat from waste water |
PCT/CH2005/000240 WO2005106371A1 (de) | 2004-04-30 | 2005-04-29 | Wärmetauscher und installation zur entnahme von wärme aus abwasser |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04405271A EP1591740B8 (de) | 2004-04-30 | 2004-04-30 | Wärmetauscher und Installation zur Entnahme von Wärme aus Abwasser |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1591740A1 true EP1591740A1 (de) | 2005-11-02 |
EP1591740B1 EP1591740B1 (de) | 2007-09-26 |
EP1591740B8 EP1591740B8 (de) | 2007-11-07 |
Family
ID=34932085
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04405271A Expired - Lifetime EP1591740B8 (de) | 2004-04-30 | 2004-04-30 | Wärmetauscher und Installation zur Entnahme von Wärme aus Abwasser |
Country Status (8)
Country | Link |
---|---|
US (1) | US8720533B2 (de) |
EP (1) | EP1591740B8 (de) |
JP (1) | JP4871858B2 (de) |
CN (1) | CN101002065B (de) |
AT (1) | ATE374350T1 (de) |
CA (1) | CA2565142C (de) |
DE (1) | DE502004005077D1 (de) |
WO (1) | WO2005106371A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2474802B1 (de) * | 2011-01-07 | 2014-07-23 | Kopf Holding GmbH | Verwendung eines Wärmetauschers in einem Abwasserkanal |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE502004005077D1 (de) * | 2004-04-30 | 2007-11-08 | Ligrufa Ag | Wärmetauscher und Installation zur Entnahme von Wärme aus Abwasser |
DE102009004619A1 (de) * | 2009-01-15 | 2011-02-17 | Mérai, Josef, Dipl.-Ing. | Verfahren und Anlage zur Schaffung einer alternativen Kläranlage zur Aufbereitung von kommunalen, industriellen und landwirtschaftlichen Abwässern und Schlämmen |
DE102009044560A1 (de) | 2009-11-17 | 2011-05-19 | Awas Gmbh Dresden | Vorrichtung zur Entnahme von Wärme aus flüssigen Medien |
FR2954819B1 (fr) | 2009-12-30 | 2013-08-16 | Lyonnaise Eaux France | Dispositif pour extraire de la chaleur dans un collecteur d'eaux usees, et installation mettant en oeuvre de tels dispositifs. |
FR2959301B1 (fr) * | 2010-04-21 | 2014-08-08 | Lyonnaise Eaux France | Installation pour extraire de la chaleur d'un effluent circulant dans une conduite, et echangeur de chaleur pour une telle installation. |
FR2959300B1 (fr) * | 2010-04-21 | 2014-08-08 | Lyonnaise Eaux France | Procede pour extraire de la chaleur d'un effluent circulant dans une conduite, echangeur de chaleur et installation mettant en oeuvre un tel procede. |
US9243853B2 (en) | 2011-12-19 | 2016-01-26 | Ecodrain Inc. | Heat exchanger |
CA2964399A1 (en) | 2016-04-12 | 2017-10-12 | Ecodrain Inc. | Heat exchange conduit and heat exchanger |
DE102019002738A1 (de) * | 2019-04-15 | 2020-10-15 | Uhrig Energie Gmbh | Wärmetauschermodul, Wärmetauschersystem und Verfahren zum Herstellen des Wärmetauschersystems |
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-
2004
- 2004-04-30 DE DE502004005077T patent/DE502004005077D1/de not_active Expired - Lifetime
- 2004-04-30 AT AT04405271T patent/ATE374350T1/de active
- 2004-04-30 EP EP04405271A patent/EP1591740B8/de not_active Expired - Lifetime
-
2005
- 2005-04-29 US US11/587,820 patent/US8720533B2/en active Active
- 2005-04-29 CN CN2005800223460A patent/CN101002065B/zh not_active Expired - Fee Related
- 2005-04-29 CA CA2565142A patent/CA2565142C/en not_active Expired - Fee Related
- 2005-04-29 JP JP2007509850A patent/JP4871858B2/ja not_active Expired - Fee Related
- 2005-04-29 WO PCT/CH2005/000240 patent/WO2005106371A1/de active Application Filing
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
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DE2742025A1 (de) * | 1977-09-17 | 1978-11-09 | Kernforschungsanlage Juelich | Rekuperativer waermeuebertrager |
US4283464A (en) * | 1979-05-08 | 1981-08-11 | Norman Hascoe | Prefabricated composite metallic heat-transmitting plate unit |
DE8517585U1 (de) * | 1985-06-15 | 1985-09-19 | Wachenfeld-Teschner, Fritz, 3540 Korbach | Vorrichtung zur Gewinnung der Abwärme aus Schmutzwasser in einem Kanalnetz |
DE3607207A1 (de) * | 1986-03-05 | 1987-09-10 | Manfred Weber | Waermetauscher |
US5857515A (en) * | 1995-04-12 | 1999-01-12 | David M. Skupien | Heat exchanging device |
DE19719311A1 (de) | 1996-05-31 | 1997-12-04 | Urs Studer | Wärmetauscher |
EP1215460A2 (de) * | 2000-12-14 | 2002-06-19 | Detlef Joachim Zimpel | Vorrichtung zum Entsorgen von Abwasser |
JP2002348942A (ja) * | 2001-05-25 | 2002-12-04 | Kubota Corp | 下水用熱交換器及びその製造方法 |
Non-Patent Citations (1)
Title |
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PATENT ABSTRACTS OF JAPAN vol. 2003, no. 04 2 April 2003 (2003-04-02) * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2474802B1 (de) * | 2011-01-07 | 2014-07-23 | Kopf Holding GmbH | Verwendung eines Wärmetauschers in einem Abwasserkanal |
Also Published As
Publication number | Publication date |
---|---|
US20070163762A1 (en) | 2007-07-19 |
JP2007535651A (ja) | 2007-12-06 |
US8720533B2 (en) | 2014-05-13 |
WO2005106371A1 (de) | 2005-11-10 |
CN101002065A (zh) | 2007-07-18 |
CN101002065B (zh) | 2011-04-13 |
CA2565142A1 (en) | 2005-11-10 |
CA2565142C (en) | 2013-10-22 |
DE502004005077D1 (de) | 2007-11-08 |
JP4871858B2 (ja) | 2012-02-08 |
EP1591740B8 (de) | 2007-11-07 |
EP1591740B1 (de) | 2007-09-26 |
ATE374350T1 (de) | 2007-10-15 |
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